fibonacci sequence in 64-bit Linux (Debian distro) assembly, fixed compile errors (integrates with a C library)!! (Works with Debian WSL on Windows!)

_fib.asm

; -----------------------------------------------------------------------------
; A 64-bit Linux application that writes the first 90 Fibonacci numbers. To
; assemble and run:
;
;     nasm -f elf64 _fib.asm && gcc _fib.o -no-pie -o a.out && ./a.out
; -----------------------------------------------------------------------------

        global  main
        extern  printf

	section .note.GNU-stack noalloc noexec nowrite progbits
        section .text
main:
        push    rbx                     ; we have to save this since we use it

        mov     ecx, 90                 ; ecx will countdown to 0
        xor     rax, rax                ; rax will hold the current number
        xor     rbx, rbx                ; rbx will hold the next number
        inc     rbx                     ; rbx is originally 1
print:
        ; We need to call printf, but we are using rax, rbx, and rcx.  printf
        ; may destroy rax and rcx so we will save these before the call and
        ; restore them afterwards.

        push    rax                     ; caller-save register
        push    rcx                     ; caller-save register

        mov     rdi, format             ; set 1st parameter (format)
        mov     rsi, rax                ; set 2nd parameter (current_number)
        xor     rax, rax                ; because printf is varargs

        ; Stack is already aligned because we pushed three 8 byte registers
        call    printf                  ; printf(format, current_number)

        pop     rcx                     ; restore caller-save register
        pop     rax                     ; restore caller-save register

        mov     rdx, rax                ; save the current number
        mov     rax, rbx                ; next number is now current
        add     rbx, rdx                ; get the new next number
        dec     ecx                     ; count down
        jnz     print                   ; if not done counting, do some more

        pop     rbx                     ; restore rbx before returning
        ret
format:
        db  "%20ld", 10, 0

exec.sh

nasm -f elf64 _fib.asm && gcc _fib.o -no-pie -o a.out && ./a.out

out

aidan@aidan:~/asm$ nasm -f elf64 fib.asm
aidan@aidan:~/asm$ gcc fib.o -no-pie -o a.out
aidan@aidan:~/asm$ ./a.out
                   0
                   1
                   1
                   2
                   3
                   5
                   8
                  13
                  21
                  34
                  55
                  89
                 144
                 233
                 377
                 610
                 987
                1597
                2584
                4181
                6765
               10946
               17711
               28657
               46368
               75025
              121393
              196418
              317811
              514229
              832040
             1346269
             2178309
             3524578
             5702887
             9227465
            14930352
            24157817
            39088169
            63245986
           102334155
           165580141
           267914296
           433494437
           701408733
          1134903170
          1836311903
          2971215073
          4807526976
          7778742049
         12586269025
         20365011074
         32951280099
         53316291173
         86267571272
        139583862445
        225851433717
        365435296162
        591286729879
        956722026041
       1548008755920
       2504730781961
       4052739537881
       6557470319842
      10610209857723
      17167680177565
      27777890035288
      44945570212853
      72723460248141
     117669030460994
     190392490709135
     308061521170129
     498454011879264
     806515533049393
    1304969544928657
    2111485077978050
    3416454622906707
    5527939700884757
    8944394323791464
   14472334024676221
   23416728348467685
   37889062373143906
   61305790721611591
   99194853094755497
  160500643816367088
  259695496911122585
  420196140727489673
  679891637638612258
 1100087778366101931
 1779979416004714189
aidan@aidan:~/asm$

Fixed errors:

aidan@aidan:~/asm$ nasm -felf64 fib.asm && gcc fib.o -z noexecstack -fPIE && ./a.out
/usr/bin/ld: fib.o: warning: relocation in read-only section `.text'
/usr/bin/ld: fib.o: relocation R_X86_64_PC32 against symbol `printf@@GLIBC_2.2.5' can not be used when making a PIE object; recompile with -fPIE
/usr/bin/ld: final link failed: bad value
collect2: error: ld returned 1 exit status

(painful)